With the continuous advancement of science and technology and the continuous upgrading of industrial demand, the preparation process of antimony trioxide powder is also being iteratively optimized in the direction of being more efficient, more environmentally friendly and more intelligent. In the pyrometallurgical smelting stage, the new rotary furnace optimizes the furnace body and burner design, improves the utilization rate of thermal energy, makes the temperature distribution in the high temperature zone uniform, reduces the loss of antimony volatilization, and reduces fuel consumption and carbon emissions. The intelligent temperature control system realizes real-time monitoring and dynamic adjustment of the roasting and reduction process to ensure the stability of the antimony oxide powder and crude antimony composition.

In the electrolytic refining stage, the new electrolyte adds composite additives to improve the efficiency of antimony dissolution, inhibit impurity co-deposition, and the cathode antimony purity reaches more than 99.99%. The modular design of the electrolytic cell supports multi-stage series connection, and the anode mud automatic separation and recovery system efficiently extracts precious metals and improves resource utilization.

In the high-temperature evaporation oxidation stage, the new generation of oxidation furnace integrates multi-zone temperature control and atmosphere control technology to customize the crystal form and particle size of Sb₂O₃ powder. The gradient condensation process meets the requirements of high-end flame retardant materials for powder dispersibility and obtains ultrafine powder. The upgrade of the oxidation furnace tail gas treatment system reduces pollutant emissions and achieves a green closed loop.

The deep integration of modern analytical technology provides full-process guarantee. The online spectrometer monitors the element content in real time and predicts the product quality trend. The laser particle size analyzer and the scanning electron microscope jointly characterize the powder morphology and particle size to provide data support for process optimization.

Today, the preparation of antimony trioxide powder has formed a complete intelligent production system, and data interconnection and collaborative management and control are realized through a digital platform. The "process-equipment-control" trinity innovation model improves production efficiency and product consistency, promotes the transformation of the antimony industry to high-end, refined and green, and provides key material support for strategic emerging industries.